package main

import "fmt"

func test() (a, b, c int) {
	return 1, 2, 3
}
func main() {

	i, j := 10, 20
	fmt.Printf("i=%d,j=%d\n", i, j)
	i, j = j, i
	fmt.Printf("i=%d,j=%d\n", i, j)

	_, _, z := test()
	//	fmt.Printf("x=%d,y=%d,z=%d\n", x, y, z)
	fmt.Printf("z=%d\n", z)

}
